Fire protection structure and prefabricated structure

Abstract

The present invention provides a fire protection structure and an assembled structure, relating to the field of fire protection technology. The fire protection structure includes a plurality of fire protection modules; each fire protection module includes a skeleton and a surface fire protection layer, and the surface fire protection layer is fixedly connected to the outer surface of the skeleton through fasteners; the skeletons of the plurality of fire protection modules are sequentially connected, and the plurality of surface fire protection layers form a closed cylindrical shape. Adjacent skeletons are clamped and / or fixedly connected through fasteners, and the plurality of skeletons can be fixedly sleeved on the component in cooperation. Since when the fire protection structure is assembled with the component, the fire protection structure is directly fixedly sleeved on the component, the skeleton of the protection device does not need to be welded to the component, and the skeleton and the surface fire protection layer are connected through fasteners, and adjacent skeletons are fixed through clamping and / or fasteners. The entire assembly process does not require welding operations, so that the assembly process of the fire protection structure is relatively convenient, and the absence of welding operations can reduce the fire risk.

Description

Technical Field

[0001] The present invention relates to the technical field of fire protection, and in particular to a fire protection structure and an assembled structure. Background Art

[0002] The prefabricated steel structure building has the characteristics of building industrialization and housing industrialization. It is the product of the transformation from the traditional construction method to the modern construction methods such as intensive, economical, green, environmental protection and technology. It is also a new carrier of green buildings. Moreover, the steel used in the building can be recycled, with broad development prospects and profound social value.

[0003] Although the prefabricated steel structure has the above advantages, the fire resistance of the steel structure is poor. After the temperature exceeds 300°C, the strength of the steel will rapidly decay. After the temperature exceeds 500°C, the bearing capacity of the steel will be reduced by 70%. Therefore, fire protection measures must be taken for the prefabricated steel structure.

[0004] To reduce the construction period, the fire protection structure of the prefabricated steel structure will be prefabricated in the factory together with the steel components. Most of them use the electric welding construction process to fix the fireproof board on the surface of the steel component through the metal skeleton, and flexible fireproof and heat-insulating materials such as aluminosilicate cotton or rock wool are filled in the metal skeleton. However, a large amount of electric sparks will be generated during the electric welding process, resulting in a complex construction process of the fire protection structure and a high fire risk. Summary of the Invention

[0005] The purpose of the present invention is to provide a fire protection structure to solve the technical problems of the complex construction process and high fire risk of the fire protection structure in the prior art.

[0006] The fire protection structure provided by the present invention includes a plurality of fire protection modules;

[0007] Each of the fire protection modules includes a skeleton and a surface fire protection layer, and the surface fire protection layer is fixedly connected to the outer surface of the skeleton through fasteners;

[0008] The skeletons of the plurality of fire protection modules are sequentially connected so that the plurality of surface fire protection layers form a closed cylindrical shape. The adjacent skeletons are clamped and / or fixedly connected through fasteners, and the plurality of skeletons can be cooperatively and fixedly sleeved on the component.

[0009] Further, the skeleton includes a plug-in groove and a plurality of keels;

[0010] The plurality of keels are a first keel, a second keel, a third keel and a fourth keel;

[0011] The first keel, the second keel, the third keel and the fourth keel are sequentially connected through fasteners to form a rectangular skeleton;

[0012] The plug-in slot is fixed on the outer bottom wall of the first keel through a fastener, and the opening of the plug-in slot is arranged towards the third keel of the adjacent skeleton;

[0013] Two adjacent skeletons are plugged with the third keel through the plug-in slot.

[0014] Further, a flexible fireproof layer is arranged inside the skeleton;

[0015] Grooves are arranged on the inner walls of the first keel, the second keel, the third keel and the fourth keel;

[0016] The first keel, the second keel, the third keel and the fourth keel surround the flexible fireproof layer on all sides, and the grooves on the first keel, the second keel, the third keel and the fourth keel are clamped with the edges of the flexible fireproof layer.

[0017] Further, two fixing pieces are also arranged on the skeleton;

[0018] The two fixing pieces are arranged in a cross shape and are connected through a fastener, and the ends of the two fixing pieces are fixedly connected with the end face of the skeleton facing the surface fireproof layer through a fastener.

[0019] Further, the surface fireproof layer includes multiple layers of first fireproof boards; adjacent layers of the first fireproof boards are connected through fasteners.

[0020] Further, the fire protection structure further includes a base fireproof layer;

[0021] The base fireproof layer is fixedly connected with the inner surface of the skeleton through a fastener, and the end face of each base fireproof layer facing the component is used for fitting with the component.

[0022] Further, the base fireproof layer includes multiple layers of second fireproof boards; adjacent layers of the second fireproof boards are connected through fasteners.

[0023] Further, the fire protection structure further includes a caulking piece; the caulking piece is arranged in the gap between adjacent surface fireproof layers.

[0024] The purpose of the present invention also lies in providing an assembled structure, including components and the fire protection structure provided by the present invention.

[0025] Further, the cross-sectional shape of the component is rectangular or I-shaped.

[0026] The fire protection structure provided by the present invention includes a plurality of fire protection modules; each of the fire protection modules includes a skeleton and a surface fire protection layer, and the surface fire protection layer is fixedly connected to the outer surface of the skeleton through fasteners; the skeletons of the plurality of fire protection modules are sequentially connected to form a closed cylindrical shape with a plurality of surface fire protection layers, and the adjacent skeletons are clamped and / or fixedly connected through fasteners, and the plurality of skeletons can be fixedly sleeved on the component in cooperation. Since the fire protection structure is directly fixedly sleeved on the component during the assembly of the fire protection structure and the component, the skeleton of the protection device does not need to be welded to the component, and the skeleton and the surface fire protection layer are connected through fasteners, and the adjacent skeletons are fixed through clamping and / or fasteners. The entire assembly process does not require welding operations, so that the assembly process of the fire protection structure is relatively convenient, and the absence of welding operations can reduce the fire risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of a fire protection structure provided by an embodiment of the present invention;

[0029] Figure 2 It is a sectional view of a fire protection structure provided by an embodiment of the present invention;

[0030] Figure 3 It is a sectional view of the base fire protection layer of a fire protection structure provided by an embodiment of the present invention;

[0031] Figure 4 It is a sectional view of the skeleton of a fire protection structure provided by an embodiment of the present invention;

[0032] Figure 5 It is a sectional view of the surface fire protection layer of a fire protection structure provided by an embodiment of the present invention;

[0033] Figure 6 It is an assembly drawing of the skeleton and the base fire protection layer of a fire protection structure provided by an embodiment of the present invention;

[0034] Figure 7 It is an exploded view of the skeleton of a fire protection structure provided by an embodiment of the present invention;

[0035] Figure 8 It is a front view of the skeleton of a fire protection structure provided by an embodiment of the present invention;

[0036] Figure 9 is an assembly drawing of the framework of a fire protection structure provided by an embodiment of the present invention;

[0037] Figure 10 is a schematic installation drawing of a fire protection structure provided by an embodiment of the present invention;

[0038] Figure 11 is an exploded view of a fire protection structure provided by another embodiment of the present invention;

[0039] Figure 12 is a sectional view of a fire protection structure provided by another embodiment of the present invention;

[0040] Figure 13 is a front view of a fire protection structure provided by another embodiment of the present invention.

[0041] Icon: 1 - component; 2 - base fireproof layer; 3 - framework; 31 - first keel; 32 - third keel; 33 - insertion slot; 34 - second keel; 35 - fourth keel; 4 - surface fireproof layer; 41 - first fireproof board of the first layer; 42 - first fireproof board of the second layer; 5 - flexible fireproof layer; 6 - screw; 7 - caulking piece; 8 - rivet; 9 - fixing piece; 10 - connecting piece. Detailed implementation manners

[0042] Next, the technical solutions of the present invention will be described clearly and initially with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] The present invention provides a fire protection structure and an assembled structure. Multiple embodiments are given below to describe in detail the fire protection structure and the assembled structure provided by the present invention.

[0044] Embodiment 1

[0045] The fire protection structure provided in this embodiment, as Figures 1 to 13 shown, includes a plurality of fire protection modules; each fire protection module includes a framework 3 and a surface fireproof layer 4, and the surface fireproof layer 4 is fixedly connected to the outer surface of the framework 3 through fasteners; the frameworks 3 of the plurality of fire protection modules are connected in sequence so that the plurality of surface fireproof layers 4 form a closed cylindrical shape, and the adjacent frameworks 3 are clamped and / or fixedly connected through fasteners, and the plurality of frameworks 3 can be fixedly sleeved on the component 1 in cooperation.

[0046] Among them, the adjacent frameworks 3 can be fixed by snap connection, can be fixed by fasteners, or can be fixed by snap connection first and then the adjacent frameworks 3 can be further fixed by fasteners.

[0047] When the fire protection structure is assembled with the component 1, the fire protection structure is directly fixedly sleeved on the component 1. The framework 3 of the protection device does not need to be welded to the component 1, and the framework 3 and the surface fireproof layer 4 are connected by fasteners. The adjacent frameworks 3 are fixed by snap connection and / or fasteners. The entire assembly process does not require welding operations, so that the assembly process of the fire protection structure is relatively convenient, and the absence of welding operations can reduce the fire risk.

[0048] In addition, the fire protection structure provided in this embodiment has wide sources of production materials, low cost, simple and fast manufacturing process, and is easy to promote and apply.

[0049] Among them, the framework 3 can be formed by fixing a plurality of keels with fasteners. The adjacent frameworks 3 are connected by fasteners, which can avoid using welding process in the manufacturing process of the framework 3.

[0050] In this embodiment, the framework 3 includes a plug-in slot 33 and a plurality of keels; the plurality of keels are a first keel 31, a second keel 34, a third keel 32, and a fourth keel 35; the first keel 31, the second keel 34, the third keel 32, and the fourth keel 35 are sequentially connected by fasteners to form a rectangular framework 3; the plug-in slot 33 is fixed on the outer bottom wall of the first keel 31 by fasteners, and the opening of the plug-in slot 33 is arranged facing the third keel 32 of the adjacent framework 3; two adjacent frameworks 3 are plugged through the plug-in slot 33 and the third keel 32.

[0051] The adjacent frameworks 3 are plugged through the plug-in slot 33 and the third keel 32. That is to say, the third keel 32 of one of the two adjacent frameworks 3 is plugged into the plug-in slot 33 of the other framework 3, which is more convenient during installation and does not require welding operations.

[0052] Among them, the specifications and dimensions of the first keel 31, the second keel 34, the third keel 32, and the fourth keel can be the same, and the width of the opening of the plug-in slot 33 can be slightly larger than the width of the third keel 32 to facilitate the plugging operation between the two.

[0053] For example, when the cross-section of the component 1 is rectangular, the fire protection structure includes four frameworks 3. The four frameworks 3 are sequentially arranged to form a closed rectangular cylinder, and the adjacent two frameworks 3 are plugged through the plug-in slot 33 of one of the two frameworks 3 and the third keel 32 of the other framework 3, so that the four frameworks 3 are fixed into a closed rectangular cylinder.

[0054] In addition, after the four skeletons 3 are inserted and fixed to each other to form a closed rectangular tube, the insertion slot 33 of one of the adjacent two skeletons 3 and the third keel 32 of the other skeleton 3 can be fixed by fasteners to improve the fixing effect, make the connection of the skeletons 3 more stable, and the overall performance better.

[0055] For example, as Figure 11 shown, when the length of the component 1 in the vertical direction is relatively large, a plurality of skeletons 3 can be arranged in the vertical direction on one side of each outer end face of the component 1, and the adjacent skeletons 3 in the vertical direction are connected by a connecting member 10 (such as a galvanized steel sheet). The connecting member 10 and each skeleton 3 are fixed by fasteners, and then the skeletons 3 adjacent to each other in the circumferential direction of the component 1 are respectively inserted and fixed to form a closed tube.

[0056] When setting the surface fireproof layer 4 in the above-mentioned embodiment, for example, the surface fireproof layer 4 has two layers of first fireproof boards. The first layer of the first fireproof board 41 is fixed on the outer surface of the skeleton 3 by fasteners, and the second layer of the first fireproof board 42 is fixed on the first layer of the first fireproof board 41 by fasteners, and the first layer of the first fireproof board 41 and the second layer of the first fireproof board 42 need to be arranged with staggered joints.

[0057] For example, as Figures 12 - 13 shown, when the length of the component 1 in the horizontal direction is relatively large, a plurality of skeletons 3 can be arranged in the horizontal direction on one side of each outer end face of the component 1. After the plurality of skeletons 3 on one side of each outer end face are inserted into each other through the insertion slots 33, they are then connected by a connecting member 10 (such as a galvanized steel sheet). The connecting member 10 and each skeleton 3 are fixed by fasteners, and then the skeletons 3 adjacent to each other in the circumferential direction of the component 1 are respectively inserted and fixed to form a closed tube.

[0058] When setting the surface fireproof layer 4 in the above-mentioned embodiment, for example, the surface fireproof layer 4 has two layers of first fireproof boards. The first layer of the first fireproof board 41 is fixed on the outer surface of the skeleton 3 by fasteners, and the second layer of the first fireproof board 42 is fixed on the first layer of the first fireproof board 41 by fasteners, and the first layer of the first fireproof board 41 and the second layer of the first fireproof board 42 need to be arranged with staggered joints.

[0059] Furthermore, a flexible fireproof layer 5 is provided inside the skeleton 3; grooves are provided on the inner walls of the first keel 31, the second keel 34, the third keel 32, and the fourth keel 35; the first keel 31, the second keel 34, the third keel 32, and the fourth keel 35 surround the flexible fireproof layer 5 on all sides, and the grooves on the first keel 31, the second keel 34, the third keel 32, and the fourth keel 35 are clamped with the edges of the flexible fireproof layer 5.

[0060] Among them, the flexible fireproof layer 5 can be made of any suitable material such as aerogel felt, rock wool or aluminum silicate wool.

[0061] Among them, the first keel 31, the second keel 34, the third keel 32 and the fourth keel 35 can be C-shaped light steel keels or any suitable form such as U-shaped light steel keels.

[0062] The flexible fireproof layer 5 is arranged inside the framework 3, which can further improve the fireproof performance of the fireproof protection structure. After the surface fireproof layer 4 accidentally falls off, the flexible fireproof layer 5 can still play a fireproof effect, preventing situations such as high-temperature flames directly burning the component 1, the bearing capacity of the component 1 decreasing sharply, and the collapse of the assembled structure.

[0063] Furthermore, two fixing parts 9 are also arranged on the framework 3; the two fixing parts 9 are arranged crosswise and connected by fasteners, and the ends of the two fixing parts 9 are fixedly connected to the end face of the framework 3 facing the surface fireproof layer 4 through fasteners.

[0064] Among them, the fixing part 9 can be rod-shaped or sheet-shaped. In this embodiment, the fixing part 9 is a galvanized steel sheet, and the two galvanized steel sheets fix the flexible fireproof layer 5 in an "X" shape, which has a good fixing effect on the flexible fireproof layer 5 and can also enhance the integrity of the fireproof protection structure, making the flexible fireproof layer 5 more firmly fixed on the framework 3. In case of a fire, if the surface fireproof layer 4 falls off, the flexible fireproof layer 5 is not easily detached from the framework 3, preventing the situation where the flame directly burns the component 1.

[0065] Among them, the surface fireproof layer 4 can include one layer of first fireproof board or multiple layers of first fireproof boards (such as 2, 3, 4, 5 or 6 layers).

[0066] In this embodiment, the surface fireproof layer 4 includes multiple layers of first fireproof boards; adjacent layers of first fireproof boards are connected by fasteners.

[0067] The first fireproof board can be a rigid fireproof board such as calcium silicate board or gypsum board.

[0068] Among them, the first fireproof board closest to the framework 3 in the multiple layers of first fireproof boards is connected to the framework 3 through fasteners, and the remaining adjacent layers of first fireproof boards are connected by fasteners.

[0069] Setting multiple layers of first fireproof boards can further improve the fireproof ability of the fireproof protection structure.

[0070] Furthermore, the fireproof protection structure further includes a base fireproof layer 2; the base fireproof layer 2 is fixedly connected to the inner surface of the framework 3 through fasteners, and the end face of each base fireproof layer 2 facing the component 1 is used to fit with the component 1.

[0071] A base fireproof layer 2 is provided, which can further improve the fireproof ability of the fireproof protection structure. In case of a fire, if the surface fireproof layer 4 and the flexible fireproof layer 5 fall off, the base fireproof layer 2 can still play a fireproof role and prevent the flame from directly burning the component 1.

[0072] In this embodiment, along the axial direction of the fireproof protection structure, the length of the base fireproof layer 2 is the same as that of the skeleton 3. Along the direction perpendicular to the axial direction of the fireproof protection structure, the length of the base fireproof layer 2 is equal to the length of the flexible fireproof layer 5 minus the length of the flange of the skeleton 3.

[0073] Among them, the base fireproof layer 2 can include one layer of second fireproof board or multiple layers of second fireproof boards (such as 2, 3, 4, 5 or 6 layers).

[0074] The second fireproof board can be a rigid fireproof board such as calcium silicate board or gypsum board.

[0075] In this embodiment, the base fireproof layer 2 includes multiple layers of second fireproof boards; adjacent layers of second fireproof boards are connected by fasteners.

[0076] Among them, the second fireproof board closest to the skeleton 3 in the multiple layers of second fireproof boards is connected to the skeleton 3 by fasteners, and the remaining adjacent layers of second fireproof boards are connected by fasteners.

[0077] Setting multiple layers of second fireproof boards can further improve the fireproof ability of the fireproof protection structure.

[0078] When assembling the surface fireproof layer 4, the base fireproof layer 2, the flexible fireproof layer 5 and the skeleton 3, the flexible fireproof layer 5 can be first installed on the skeleton 3, and the fixing member 9 can be installed on the skeleton 3 to firmly fix the flexible fireproof layer 5. Then, the base fireproof layer 2 is fixed to the skeleton 3 by fasteners. Subsequently, after the skeletons 3 on the outer end face sides of the component 1 in all directions are sequentially inserted counterclockwise and fixed by fasteners, the first fireproof board 41 of the first layer is installed on the outer surface of the skeleton 3, and the second fireproof board 42 of the second layer is installed on the first fireproof board 41 of the first layer, so that the first fireproof boards on each skeleton 3 cooperate to form a closed cylindrical shape to be sleeved outside the component 1. A small amount of fireproof mud can be applied to cover and protect the fasteners on the second fireproof board 42 of the second layer.

[0079] Furthermore, the fireproof protection structure further includes a caulking member 7; the caulking member 7 is arranged in the gap between adjacent surface fireproof layers 4.

[0080] Specifically, after the second fireproof board 42 of the second layer is installed, if there are gaps between adjacent second fireproof boards 42 of the second layer, the caulking member 7 can be used for plugging to improve the sealing ability.

[0081] Among them, the caulking member 7 can be a flexible material such as weather-resistant glue, silicone sealant, etc. for filling gaps, depressions and leveling, or mud or cement mortar.

[0082] The fasteners in this embodiment can be in any suitable form such as screws 6 or rivets 8. For example, the connection between the skeletons 3 can use rivets 8, the connection between the first keel 31, the second keel 34, the third keel 32 and the fourth keel 35 can use rivets 8, the connection between the surface fireproof layer 4 and the skeleton 3 can use screws 6, and the base fireproof layer 2 can use screws 6.

[0083] Among them, the number of fasteners used can be determined according to the thickness of the board and the strength of the keel.

[0084] The fire protection structure provided in this embodiment includes a plurality of fire protection modules; each fire protection module includes a skeleton 3 and a surface fireproof layer 4, and the surface fireproof layer 4 is fixedly connected to the outer surface of the skeleton 3 through fasteners; the skeletons 3 of the plurality of fire protection modules are connected in sequence so that the plurality of surface fireproof layers 4 form a closed cylindrical shape, and the adjacent skeletons 3 are clamped and / or fixedly connected through fasteners, and the plurality of skeletons 3 can be fixedly sleeved on the component 1 in cooperation. Since when the fire protection structure is assembled with the component 1, the fire protection structure is directly fixedly sleeved on the component 1, the skeleton 3 of the protection device does not need to be welded to the component 1, and the skeleton 3 and the surface fireproof layer 4 are connected through fasteners, and the adjacent skeletons 3 are fixed through clamping and / or fasteners, and the entire assembly process does not require welding operations, so that the assembly process of the fire protection structure is relatively convenient, and the absence of welding operations can reduce the fire risk.

[0085] Embodiment 2

[0086] The prefabricated structure provided in this embodiment includes a component 1 and the fire protection structure provided in this embodiment. Since when the fire protection structure is assembled with the component 1, the fire protection structure is directly fixedly sleeved on the component 1, the skeleton 3 of the protection device does not need to be welded to the component 1, and the skeleton 3 and the surface fireproof layer 4 are connected through fasteners, and the adjacent skeletons 3 are fixed through clamping and / or fasteners, and the entire assembly process does not require welding operations, so that the assembly process of the fire protection structure is relatively convenient, and the absence of welding operations can reduce the fire risk.

[0087] Furthermore, the cross-sectional shape of the component 1 is rectangular or I-shaped, and the component 1 can be used as a beam, column or inclined support member.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fire protection structure, characterized in that, it includes a plurality of fire protection modules; each of the fire protection modules includes a framework and a surface fire protection layer, and the surface fire protection layer is fixedly connected to the outer surface of the framework through fasteners; the frameworks of the plurality of fire protection modules are sequentially connected so that a plurality of surface fire protection layers form a closed cylindrical shape, and adjacent frameworks are fixedly connected through fasteners, and the plurality of frameworks can be fixedly sleeved on the component in cooperation; the framework is not welded to the component; the framework includes a plug-in groove and a plurality of keels; the plurality of keels are a first keel, a second keel, a third keel and a fourth keel; the first keel, the second keel, the third keel and the fourth keel are sequentially connected through fasteners and form a rectangular framework; the plug-in groove is fixedly arranged on the outer bottom wall of the first keel through a fastener, and the opening of the plug-in groove is arranged towards the third keel of the adjacent framework; two adjacent frameworks are plugged through the plug-in groove and the third keel; a flexible fire protection layer is arranged inside the framework; grooves are arranged on the inner walls of the first keel, the second keel, the third keel and the fourth keel; the first keel, the second keel, the third keel and the fourth keel surround the flexible fire protection layer on all sides, and the grooves on the first keel, the second keel, the third keel and the fourth keel are clamped with the edge of the flexible fire protection layer.

2. The fire protection structure according to claim 1, characterized in that, two fixing parts are further arranged on the framework; the two fixing parts are arranged in a cross shape and connected through fasteners, and the ends of the two fixing parts are fixedly connected to the end surface of the framework facing the surface fire protection layer through fasteners.

3. The fire protection structure according to claim 1, characterized in that, the surface fire protection layer includes multiple layers of first fire protection boards; adjacent layers of the first fire protection boards are connected through fasteners.

4. The fire protection structure according to claim 1, characterized in that, the fire protection structure further includes a base fire protection layer; the base fire protection layer is fixedly connected to the inner surface of the framework through fasteners, and the end surface of each base fire protection layer facing the component is used for fitting with the component.

5. The fire protection structure according to claim 4, characterized in that, the base fire protection layer includes multiple layers of second fire protection boards; adjacent layers of the second fire protection boards are connected through fasteners.

6. The fire protection structure according to any one of claims 1-5, characterized in that, the fire protection structure further includes a caulking piece; the caulking piece is arranged in the gap between adjacent surface fire protection layers.

7. An assembled structure, characterized in that, it includes a component and the fire protection structure according to any one of claims 1-6.

8. The assembled structure according to claim 7, characterized in that, the cross-sectional shape of the component is rectangular or I-shaped.

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